Suppose astronomers are interested in obtaining an image of a large
area in the sky. Which radiation should astronomers observe if they
want to get images 24 hours a day, quickly and cheaply? Why?

Answer:

lol this is what you get for not answering my question and stealing points

Explanation:

Answer:

i believe it is a

Explanation:

The reason is :a.They can gain more food for their offspring

Animals tend to protect their territory because they don't want  intruders to invade their territory.

Animals majorly protect their territory in order to protect their foods from been eating by intruders as this will enables their offerings to have enough foods to eat.

They as well guard  their territory in order to prevent intruders from invading the place they have prepare as their mating place.

Inconclusion  The reason why some animals defend  their territory after they have mated

and reproduced is :a.They can gain more food for their offspring

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Answer:he’s right

Explanation:

Lithium nitride is the only alkali metal nitride which has the chemical formula Li₃N and it reacts with water to produce ammonia and lithium hydroxide. The charges of each ion are +1 and -3. The correct option is B.

The ions which are positively charged are called the cations whereas the ions which are negatively charged are called the anions. The combination of the cations and anions results in the formation of an ionic compound.

In lithium nitride, the cation is Li⁺ and the anion is N³⁻. The charge on the nitride ion is -3 and that of the lithium ion is +1. The total number of electrons present in the molecule is 10. Because the number of protons is 7 and 3 electrons were added from -3 on the nitride ion.

Thus the correct option is B.

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Answer:

The answer for this question is A. butylcyclohexane

Explanation:

Choose letter A

You welcome have a nice day.

Name of the given compound is butyl cyclohexane.

Cyclo alkanes are those organic compounds in which alkanes are present in the cyclic form.

In the nomenclature of cyclo alkane, name of the substitute is put before the name of the main ring. In the given structure number of carbons in ring is 6 so that given cycloalkane is cyclohexane and butyl group is attached as substitute. So name of the given compound is butyl cyclohexane.

Hence name of the compound is butyl cyclohexane.

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Answer:

15.3 g

Explanation:

First we convert 8.0 grams of aluminum into moles, using its molar mass:

Then we convert 0.30 moles of aluminum into moles of aluminum oxide, using the stoichiometric coefficients:

Finally we convert 0.15 moles of Al₂O₃ into grams, using its molar mass:

Answer:

C) The puck gradually slows down because friction would be acting on it.

Explanation:

It would be C because the puck would be scraping the ice and when it's scraping it slowly losses its speed because the ground is pushing it lightly

Hoped that helped :/

Answer:

Thus, the required heat is 79kJ 79 k J .

Explanation:

i think its the right bottem one

Answer:

One of water's most significant properties is that it takes a lot of heat to it to make it get hot. Precisely, water has to absorb 4,184 Joules of heat (1 calorie) for the temperature of one kilogram of water to increase 1°C.

Explanation:

Answer:

0.04506 mol

Explanation:

For this problem, you need to convert grams to moles.  To do this, you need the molar mass, which is given.  Divide the mass by the molar mass to find the moles you have.

(5.001 g)/(110.98 g/mol) = 0.04506 mol

Answer:

They attract each other

Explanation:

A magnet has two poles;

North pole and south pole

When two opposite poles are placed close to each other, they attract each other. The short rule is opposite opes attract.

When two like poles are placed close to each other, they repel each other. The short rule is like poles repel.

Answer:

1, 1, 2

Explanation:

1, 1, 2

Answer:

net force is 100 N and direction is right

Explanation:

Answer:this should be c

Explanation:

Answer:

Thermal Transfer.

Explanation:

If you touch a hot object, the heat is transferred from the object to your hand through conduction. (This is the actual answer.)

Answer:

The formation of a gas is a clue to chemical changes. The bubbles of gas that you observed form when an antacid is dropped into water is an example of change. Another clue that a chemical change has occurred is the formation of a solid.

Explanation:

Answer:

H2O2

Explanation:

There's hydrogen and ox in the formula to represent

Answer:

22

Explanation:

Answer:

2 grams.

Explanation:

H2 + O2 --->  H2O2

Using molar masses:

2*1 g hydrogen   reacts with 2*16  g oxygen.

so 2g H2 reacts with 32 g O2.

Answer:chemical markers

Explanation:

I’m smart give brainlest plz

Answer:

There's no such thing as absolute zero

Answer:

I think number 1 but if wrong report me

Answer:

Explanation:

The correct answer is

energy resulting from the flow of charged particles , such as electrons or ions.

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Answer:

2 K(s) + Cl₂ (g) --> 2 KCl(s)

Explanation:

Potassium will just be K

Chlorine gas is part of BrIClHOF, which are diatomic gasses. So Cl₂

Looking at the periodic table potassium K has an ion charge of +1 and chlorine Cl has an ion charge of -1, so in a balanced compound they will be written as KCl

Balancing the amounts of each will lead to 2 K(s) + Cl₂ (g) --> 2 KCl(s)

Answer:

freezing

Explanation:

When a solid reaches the temperature of its melting point, it can become a liquid. For water, the temperature needs to be a little over zero degrees Celsius (0oC) for you to melt. ... The reverse of the melting process is called freezing. Liquid water freezes and becomes solid ice when the molecules lose energy.

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